Bicoloromyces kyffinensis: a new genus and species of lichen-inhabiting conidial fungi from 83°46'S

2015 ◽  
Vol 27 (5) ◽  
pp. 421-428 ◽  
Author(s):  
Bettina Heuchert ◽  
Leopoldo G. Sancho ◽  
Uwe Braun ◽  
David L. Hawksworth
Keyword(s):  
Calcium Oxalate ◽  
Energy Dispersive Spectroscopy ◽  
New Genus ◽  
Energy Dispersive ◽  
New Genus And Species ◽  
Conidial Fungi ◽  
Crustose Lichen ◽  
The Antarctic ◽  
Rock Inhabiting Fungi

AbstractThe new genus and species Bicoloromyces kyffinensis is described as new to science from a sterile crustose lichen, perhaps Lecanora fuscobrunnea or Lecidella sp. from Ebony Ridge of Mount Kyffin, Antarctica. The fungus recalls superficially the lichenicolous species referred to Taeniolella, but differs in having semi-macronematous conidiophores, tissues encrusted with calcium oxalate, aeruginose to blue-black colouration under the microscope, and conidia which are distoseptate and formed in basipetal chains. Energy dispersive spectroscopy established that the encrustations were of calcium oxalate. Differences from genera of rock-inhabiting fungi described from the Antarctic are discussed. This appears to be the furthest south any lichen-inhabiting fungus has been reported.

Andeepia ingridae a new genus and species of Pardaliscidae (Crustacea, Amphipoda) from the Antarctic deep-sea and short redescription of Nicippe unidentata K.H. Barnard, 1932

Zootaxa ◽  
2009 ◽  
Vol 1977 (1) ◽  
pp. 21-38 ◽  
Author(s):  
TAPATI BISWAS ◽  
CHARLES OLIVER COLEMAN ◽  
ED A. HENDRYCKS
Keyword(s):  
Southern Ocean ◽  
Deep Sea ◽  
New Genus ◽  
Type Material ◽  
New Genus And Species ◽  
The Antarctic ◽  
First Time

The new genus and species Andeepia ingridae is described. The main features of this taxon are: urosomite 2 with middorsal tooth; massive propodi of gnathopods 1–2; carpus of gnathopod 1 short, weakly lobate and half the length of that of gnathopod 2; dactylus of gnathopod 2 with distinct dentition on the inner margin; dactylus of gnathopod 1 smooth, lacking dentition, but in the cuticle with faint trace of embedded teeth and reduced setation on pereopods and uropods. The related southern ocean pardaliscid, Nicippe unidentata K.H. Barnard, 1932 is also re-described and illustrated for the first time from the type material.

New genus and species of Polymastiidae (Demospongiae: Hadromerida) from the Antarctic deep sea

2007 ◽  
Vol 87 (6) ◽  
pp. 1395-1401 ◽  
Author(s):  
Alexander S. Plotkin ◽  
Dorte Janussen
Keyword(s):  
Phylogenetic Analysis ◽  
Deep Sea ◽  
New Genus ◽  
New Genus And Species ◽  
The Family ◽  
Abyssal Zone ◽  
The Antarctic

A new sponge genus and species, Astrotylus astrotylus, is described from the Antarctic abyssal zone. Its peculiar microscleres, herein referred to as astrotylostyles, combine the features of asterose spicules and tylostyles. Similar spicules are observed in Hymeraphia and Discorhabdella (order Poecilosclerida). But this similarity is convergent as far as a radial choanosomal skeleton composed by principal tylostyles and a cortical palisade of small tylostyles in Astrotylus undoubtedly confirm its allocation to the order Hadromerida and most likely to the family Polymastiidae. Atergia, Acanthopolymastia and Tylexocladus have the closest affinities with Astrotylus that calls for the phylogenetic analysis of their relations. Meanwhile astrotylostyles of Astrotylus, cladotylostyles of Tylexocladus and grapnel-like exotyles of Proteleia may be the remnants of non-monaxonic ancestral spicule type in Polymastiidae that calls for reconsideration of the relations between hadromerid families.

scholarly journals Oligodendrorhynchus hesperides gen. et sp. n. (Heteronemertea) from the Bellingshausen Sea

2012 ◽  
Vol 33 (1) ◽  
pp. 81-98 ◽  
Author(s):  
Fernando Fernández-Alvarez ◽  
Nuria Anadón
Keyword(s):  
Body Wall ◽  
New Genus ◽  
Circular Muscle ◽  
Muscle Layer ◽  
Muscle Fibres ◽  
New Taxon ◽  
New Genus And Species ◽  
Bellingshausen Sea ◽  
Anatomical Characters ◽  
The Antarctic

Oligodendrorhynchus hesperides gen. et sp. n. (Heteronemertea) from the Bellingshausen Sea A new genus and species of heteronemertean from the Antarctic (Bellingshausen Sea), Oligodendrorhynchus hesperides, is described and illustrated. Some morphological features with major systematic significance are following: the mode of branching of the proboscis and its low number of terminal branches; the lack of horizontal lateral cephalic slits but in their place a pair of shallow epidermal depressions; a gelatinous amorphous connective stratum between the outer longitudinal and circular muscle layers; the presence of a rhynchocoelic nerve; isolated fibres of the rhynchocoel circular muscle layer interwoven with bundles of the adjacent body-wall inner longitudinal muscle fibres in the intestinal region. Other anatomical characters which can also be used to distinguish the new taxon from existing heteronemertean species that have a branched proboscis are also discussed.

Antarctomithrax thomsoni,a new genus and species of crab (Brachyura; Majidae) from the La Meseta Formation (Eocene) of Seymour Island, Antarctica

1994 ◽  
Vol 68 (1) ◽  
pp. 174-176 ◽  
Author(s):  
Rodney M. Feldmann
Keyword(s):  
Antarctic Peninsula ◽  
Late Cretaceous ◽  
New Genus ◽  
High Energy ◽  
Lower Latitude ◽  
Decapod Crustaceans ◽  
New Genus And Species ◽  
La Meseta Formation ◽  
The Antarctic ◽  
Seymour Island

The james ross basin, situated on the eastern margin of the Antarctic Peninsula, has yielded an extensive fauna of decapod crustaceans spanning Late Cretaceous through Eocene time. To date, 28 species in 22 genera and 18 families have been described (Feldmann, 1992; Feldmann, Tshudy, and Thomson, 1993), making this the most diverse fossil decapod fauna in the Southern Hemisphere. Within the basin, Seymour Island alone contains rocks of the Eocene age La Meseta Formation from which seven species of crabs, one galatheid, and one species of callianassid ghost shrimp have been described (Feldmann and Zinsmeister, 1984; Feldmann and Wilson, 1988; Feldmann, 1992). The fauna of the La Meseta is remarkable also because, although the organisms are preserved in rocks deposited in moderate- to high-energy, shallow-water habitats (Elliot and Trautman, 1982), many of the species represent early occurrences of taxa with living descendants that are characteristic of deeper water, lower latitude habitats (Zinsmeister and Feldmann, 1984).

A new genus and species of sea pen (Octocorallia : Pennatulacea : Stachyptilidae) from the Antarctic Peninsula

2002 ◽  
Vol 16 (6) ◽  
pp. 919 ◽  
Author(s):  
Pablo J. López-González ◽  
Gary C. Williams
Keyword(s):  
New Species ◽  
Antarctic Peninsula ◽  
New Genus ◽  
South Shetland Islands ◽  
New Genus And Species ◽  
Antarctic Region ◽  
Diagnostic Features ◽  
Shetland Islands ◽  
The Antarctic ◽  
Southern Oceans

Only six of the thirty-three valid genera of sea pens have previously been recorded from the Southern Oceans (Subantarctic and Antarctic regions). The discovery of a new genus, Gilibelemnon, and new species, Gilibelemnon octodentatum, of stachyptilid sea pen is here reported from the South Shetland Islands, which makes a total of eight genera known to occur in the Southern Oceans and thirty-four genera of sea pens known worldwide. Diagnostic features of the new genus are described, including the presence of a clearly delimited dorsal and ventral naked track on the rachis, the calyces with eight long terminal teeth, the siphonozooids densely and irregularly distributed and the presence of three-flanged rods in the peduncle surface. A discussion of sea pen phylogeny and biogeography in the Antarctic region is also provided.

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